Celebrity Keith Urban: We Are in 'Deep Grief' over the Death of Nicole Kidman's Father The country singer postpones his concert to travel with his wife and family back to Australia By Kathy Ehrich Dowd Published on September 13, 2014 01:55 PM Share Tweet Pin Email Photo: Lester Cohen/WireImage Keith Urban has spoken out about the death of wife Nicole Kidman‘s father – and expressed how devastated they are over the loss. “I’m so very sorry that I cannot perform this weekend. We are in a deep state of grief at the passing of Nic’s Father,” he Tweeted Friday, following the news that his father-in-law, Dr. Antony Kidman, died suddenly in Singapore the same day. Urban, 46, was scheduled to perform at the Washington State Fair Saturday, but wrote on Facebook that he and his family are planning to travel back to his native Australia instead. “[We] are heading to Australia to be with family. We want to thank everyone from the bottom of our hearts for their love, prayers and support through this devastating loss. – KU,” he wrote. According to the Sydney Morning Herald, Dr. Kidman, 75, died suddenly on Friday after suffering a suspected heart attack at a restaurant located inside a Singapore hotel. The renowned psychologist was reportedly spending time with Nicole’s younger sister, Antonia, and her six children in the Asian island country. On Saturday, Antonia was spotted returning to her parents’ home in Sydney. Dr. Kidman was also close to his Oscar-winning daughter. In June, he accompanied both Nicole, 47, and Urban to the Swisse Celebrate Life Ball in Melbourne – and she gushed about his presence there to the Herald. When asked at the event to name something great in her life, Nicole replied: “My family. My dad’s here … here’s my dad,” she said with pride, then added: “I’ve got my men here tonight.” Want more stories like this? Sign up for our newsletter and other special offers: sign me up Thank you for signing up!